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    METHOD AND APPARATUS FOR CATCHING DARTS AND OTHER DROPPED OBJECTS
    1.
    发明申请
    METHOD AND APPARATUS FOR CATCHING DARTS AND OTHER DROPPED OBJECTS 审中-公开
    用于捕获数据和其他丢弃对象的方法和装置

    公开(公告)号：US20150308213A1

    公开(公告)日：2015-10-29

    申请号：US14708817

    申请日：2015-05-11

    申请人： BLACKHAWK SPECIALTY TOOLS, LLC

    发明人： J. CHRISTOPHER JORDAN ,  BRAD GROESBECK

    IPC分类号： E21B33/12

    CPC分类号： E21B33/12 ,  E21B33/16

    摘要： A dart or other dropped object having a rigid nose is dropped or launched down hole, typically during cementing operations, until it lands on a resilient seat within a dart catcher receptacle. By increasing a pressure differential across the landed dart to a predetermined amount, the dart extrudes through the seat and passes into a ported catcher sub. The seat member can be constructed of engineered composite material that does not yield in response to passage of the dart and returns to its original size following such passage.

    摘要翻译： 通常在固井操作期间，具有刚性鼻子的飞镖或其他落下的物体掉落或下落，直到其落在镖捕获器容器内的弹性座椅上。 通过将落地飞镖上的压力差增加到预定量，飞镖通过座位挤出并进入移动的捕手子。 座椅构件可以由工程复合材料构成，其不响应于飞镖的通过而产生，并且在通过之后返回到其原始尺寸。

    LARGE BORE AUTO-FILL FLOAT EQUIPMENT
    2.
    发明申请
    LARGE BORE AUTO-FILL FLOAT EQUIPMENT 审中-公开
    大型汽油自动充气设备

    公开(公告)号：US20150136404A1

    公开(公告)日：2015-05-21

    申请号：US14594357

    申请日：2015-01-12

    申请人： BLACKHAWK SPECIALTY TOOLS, LLC

    发明人： BRAD GROESBECK ,  JEFFREY ARCEMENT ,  J. CHRISTOPHER JORDAN ,  JAMES G. MARTENS

    IPC分类号： E21B34/16

    CPC分类号： E21B34/16 ,  E21B21/10 ,  E21B2034/002 ,  E21B2034/005 ,  Y10T137/1662 ,  Y10T137/1677 ,  Y10T137/7426 ,  Y10T137/7846 ,  Y10T137/7854 ,  Y10T137/87981

    摘要： An auto-fill type float collar assembly is provided. The float collar assembly of the present invention has at least one curved flapper-style valve, preferably constructed of composite, non-metallic material. Each flapper of the present invention has a substantially 90° range of motion, and is closed via a torsion spring. Each flapper is held in the open (or “auto-fill”), position via an external shifting mechanism passing around, rather than through, the central flow bore of the assembly. A floatable actuation ball can be run with the tool, or pumped downhole, in order to selectively actuate the assembly and close the flappers when desired.

    摘要翻译： 提供了一种自动填充型浮圈组合件。 本发明的浮子环组件具有至少一个弯曲的挡板式阀，优选地由复合非金属材料构成。 本发明的每个挡板具有大致90°的运动范围，并且通过扭转弹簧闭合。 每个挡板通过外部移动机构保持在打开（或“自动填充”）位置，该外部移动机构绕组件的中心流动孔而不是通过。 可浮动的致动球可以与工具一起运行，或者在井下泵送，以便在需要时选择性地致动组件并关闭挡板。

    WELL CENTRALIZER
    3.
    发明申请
    WELL CENTRALIZER 有权
    好中心

    公开(公告)号：US20150368991A1

    公开(公告)日：2015-12-24

    申请号：US14822173

    申请日：2015-08-10

    申请人： BLACKHAWK SPECIALTY TOOLS, LLC

    发明人： J. CHRISTOPHER JORDAN ,  JAMES G. MARTENS ,  JEFFREY J. ARCEMENT ,  JUAN CARLOS E. MONDELLI ,  JOHN E. HEBERT ,  SCOTTIE J. SCOTT ,  THOMAS A. DUPRE'

    IPC分类号： E21B17/10

    CPC分类号： E21B17/1078 ,  E21B17/1028 ,  E21B19/24 ,  Y10T29/49826

    摘要： A centralizer assembly having a tubular body member with upper and lower channels extending around the external surface of said central tubular body member. A bow spring assembly having bow spring members is installed around the outer surface of the tubular body member and can rotate about the outer surface of the central tubular body member. Bow spring heel supports prevent the bow spring members from contacting the outer surface of the central tubular member when compressed. Non-abrasive materials prevent damage to wellhead or other polished bore receptacles. A robust bolster frame protects the centralizer assembly during shipping, storage or other periods of non-use.

    摘要翻译： 一种具有管状本体构件的扶正器组件，其具有围绕所述中心管状本体构件的外表面延伸的上通道和下通道。 具有弓形弹簧构件的弓形弹簧组件安装在管状本体构件的外表面周围并且可围绕中心管状本体构件的外表面旋转。 弓形弹簧脚跟支撑件防止弓形弹簧构件在压缩时接触中心管状构件的外表面。 非磨蚀性材料可防止损坏井口或其他抛光孔容器。 坚固的枕头框架在运输，储存或其他不使用期间保护了对中器组件。

    REVERSIBLE PORTED SUB ASSEMBLY
    4.
    发明申请
    REVERSIBLE PORTED SUB ASSEMBLY 审中-公开
    可反转的副组件

    公开(公告)号：US20140041859A1

    公开(公告)日：2014-02-13

    申请号：US13962363

    申请日：2013-08-08

    申请人： BLACKHAWK SPECIALTY TOOLS, LLC

    发明人： J. CHRISTOPHER JORDAN ,  BRAD GROESBECK ,  JOSHUA HEIN ,  CARLOS LOPEZ

    IPC分类号： E21B41/00

    CPC分类号： E21B41/00 ,  E21B41/0078

    摘要： A reversible ported sub assembly has an upper connection assembly, a ported lower end assembly and a reversible ported jetting member. The reversible ported jetting member has a central through-bore and jet ports extending laterally from the central through-bore to the outer surface of the ported jetting member at an acute angle relative to the longitudinal axis of the central through-bore. The reversible ported jetting member can be flipped or reversed so that the jet ports can be optionally oriented generally upwardly or downwardly within a wellbore, as desired. A removable plug member can be optionally installed to prevent fluid flow through the ported lower end assembly.

    摘要翻译： 可逆移动的子组件具有上连接组件，端口下端组件和可逆端口喷射构件。 可逆端口喷射构件具有中心通孔和从中心通孔横向延伸到入口喷射构件的外表面的喷射口，其相对于中心通孔的纵向轴线成锐角。 可逆转的喷射构件可以被翻转或反向，使得喷射口可以根据需要在井筒内大致向上或向下任意定向。 可以可选地安装可拆卸的塞子构件以防止流体流过移动的下端组件。